Enables precise airflow control to maintain proper combustion air-to-fuel ratios

This total relief valve kit provides a direct factory solution for internal component failures

intermittent motor operation

Manual Override Lever: Simplifies the commissioning process by allowing manual opening for system filling and air purging

the CAP075800440RT offers precise microfarad tolerances and heavy-duty terminals for secure connectivity

Lochinvar & A.O. Smith 100173748 Cut-Off Els PW 17895 Enables precise airflow control toThe Lochinvar & A. O. Smith 100173748 is a critical Low Water Cut Off (LWCO) safety control designed to protect hydronic and steam systems from dry fire conditions. Functioning as an Auto Reset sensor, this component continuously monitors the boilers water level and breaks the 24V control circuit to the burner if a low water threshold is detected. This specific HVAC replacement part is essential for maintaining operational safety in residential and